Question 4 HR are conducting an investigation into the salary (Y; in [000s) of the company's employees with respect to their years of employment (; ). Information has been obtained from a random sample of n = 20 employees and Not yet answered the The table below gives some useful summary statistics from the data: Marked out of 4.00 Flag question Statistic Value 5.5 y 38.21 156.25 1368.96 367.1875 From fitting a normal linear regression model, the HR manager gets the estimates of a = 25.285, B = 2.35 for the regression parameters, and the variance is estimated by s = 21.16. Calculate the 95.0% confidence interval for the slope parameter S. In your calculations, give your values to the following quantities: . The standard error of the estimate, s. e. (B) to 3 decimal places: |0.384 0.384 . The degree of freedom of the Student's t-distribution: . The lower bound of the 95.0% confidence interval to 2 decimal places: to 2 d.p. . The upper bound of the 95.0% confidence interval to 2 decimal places: to 2 d.p. Previous page Next page Week 6 (28 Feb - 04 Mar) Jump to... SHEET